Test tube receptacle



FIG. 1 is a rear perspective view of the test tube receptacle showing mynew design;

FIG. 2 is a right side elevational view of the test tube receptaclethereof;

FIG. 3 is a left side elevational view of the test tube receptaclethereof;

FIG. 4 is a top plan view of the test tube receptacle thereof;

FIG. 5 is a bottom plan view of the test tube receptacle thereof;

FIG. 6 is a front elevational view of the test tube receptacle thereof;and,

FIG. 7 is a rear elevational view of the test tube receptacle thereof.

The ornamental design for the test tube receptacle, as shown anddescribed.